Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01D—HARVESTING; MOWING
  • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
  • A01D41/12—Details of combines
  • A01D41/1208—Tanks for grain or chaff
  • A01D41/1217—Unloading mechanisms

Definitions

• This invention relates to combine harvesters.
• An object of the present invention is to provide a combine harvester having a discharge pipe that allows increased sideways clearance for discharging grain.
• This object is achieved according to the invention by providing a combine harvester having a grain tank with a discharge pipe that is connected to the tank at or adjacent to the rear of the tank and has a portion that is movable between an unloading position in which it extends laterally from one side of the combine and a transport position in which it extends forwards from the rear of the combine. In this way, the horizontal length of the discharge pipe can be ade to approach that of the combine without overhanging the front or rear of the combine.
• the discharge pipe is arranged towards one side of the combine and extends forwards over the top of the combine in the transport position.
• the horizontal portion of the discharge pipe pivots sideways from the transport to the discharging position about an upright axis that is preferably inclined forwards towards the top and ay be the axis of the up ⁇ right portion of the discharge pipe.
• This inclined axis causes the outlet " end of the discharge pipe to lift as it pivots to the discharging position, thereby increasing the vertical clearance for taller service vehicles.
• the grain tank preferably has an inclined floor that slopes downwards towards the front so as to increase its- capacity and shift the center of mass forwards. This feature makes it necessary to provide conveyor means, such as augers, at the bottom of the tank to feed grain upwards and rearwards to the discharge pipe.
• conveyor means such as augers
• the tank has a saddle-like form with downwardly extending side portions and each of these
• OMPI side portions has an inclined bottom provided with a rearwardly directed conveyor means.
• Laterally directed conveyor means connects the two side portions at the rear and the discharge pipe is connected to said lateral conveyor means to receive grain from both side portions.
• Figure 1 is a side elevation of a combine harvester according to the invention.
• Figure 2 is a rear elevation of the combine harvester of Figure 1.
• the illustrated combine harvester has a chassis with two front drive wheels 1 and two rear steering wheels 2.
• a threshing cylinder 3 is mo-unted between the front wheels 1 and a crop gathering table 4 is mounted on the front of the combine and feeds cut crop to the cylinder.
• the crop is threshed between the cylinder and open grate concave 5 and the straw is fed onto straw walkers 6 that pass it rearwards.
• An elevator 7 in the form of an endless conveyor collects grain that falls through the concave 5 and passes this to a shaker shoe 8 that also receives grain from the straw walkers 6. Clean grain -is fed from the 'shaker shoe to a grain tank 9 by an elevator 10 at each side of the combine.
• the tank 9 is located behind the driver's cab 11 and combine engine 12, and is in the form of a saddle that straddles the straw walkers 6.
• the crop gathering and threshing mechanism and the grain cleaning mechanism form no part of the present invention and thus they will not be described in any further detail.
• the grain tank 9 comprises a central bridging portion 13 above the straw walkers having a floor 14 that slopes downwards and outwards on each side of the center line towards a respective side tank 15 (See Figure 2).
• each side tank 15 has an inclined floor 16 that slopes upwards towards the rear and a front wall 17 that slopes forwards and downwards towards the ground so as to make the maximum use of the available space for grain storage.
• Grain is discharged from the tank 9 through a discharge pipe 18, the lower end of which is connected to the lower rear ends of the side tanks 15 via a later- allly extending auger assembly 19 that feeds grain out of both tanks (See Figure 2 ).
• An auger 20 is provided along the bottom of each side tank 15 in a V-section Valle formed in the floor 16 and serves to feed grain upwards an rearwards to the lateral auger 1.
• the discharge pipe 18 is located between the rear end of the side tanks 15 alongside the left ha ⁇ d side tank in Figure 2, and comprises an upright portion 21 that extends upwards and forwards to the top of the grain tank 9, an elbow 22, and a substantially horizontal portion 23 that has an outlet duct 24 at its free end.
• the discharge pipe or at least the horizontal portion 23, is mounted so as to pivot about the axis of the upright portion 21 so that it can be swung between a transport position in which it ext ⁇ nds forwards above the cab 11 as seen in Figure 1, and a discharging position in which it extands laterally away from the left hand side of the combine as indicated in Figure 2.
• the horizontal portion 23 of the discharge pipe is inclined upwards towards its free end because of the inclination of its pivot axis, the angle of inclination of the pivot axis
• OMPI being the angle of inclination i parted to the horizontal portion 23.
• the lateral auger 19 has helical flights 25, 26 of opposite hand on either side of the upright portion 21 of the discharge pipe so as to feed grain from both sides towards a well 27 for ed at the bottom of the discharge pipe 18.
• the drive mechanism for the augers 19, 20 and those of the discharge pipe 18 is not shown but may be of conventional design.
• Additional feed augers 28 are provided within the side tanks 15 beneath the Output ends of the elevators 10 so as to distribute grain longitudinally in each tank, grain being fed along a Channel 29 and overflowing its edges.
• the engine 12 of the combine is mounted on the right hand side of the combine (as seen in Figure 2), on that side of the central longitudinal plane of the combine opposite the discharge pipe 18. The engine then counter-balances the weight of the discharge pipe and its contents when discharging grain.

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• Life Sciences & Earth Sciences (AREA)
• Environmental Sciences (AREA)
• Threshing Machine Elements (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=10507180

Family Applications (1)

Country Status (15)

Cited By (2)

Families Citing this family (1)

Citations (7)

Family Cites Families (1)

• 1980
  • 1980-07-31 ZA ZA00804672A patent/ZA804672B/xx unknown
  • 1980-08-05 FI FI802450A patent/FI802450A/fi not_active Application Discontinuation
  • 1980-08-06 DE DE8080901653T patent/DE3065529D1/de not_active Expired
  • 1980-08-06 BR BR8009017A patent/BR8009017A/pt unknown
  • 1980-08-06 JP JP50201580A patent/JPS56501152A/ja active Pending
  • 1980-08-06 EP EP80901653A patent/EP0041951B1/en not_active Expired
  • 1980-08-06 AU AU62294/80A patent/AU545417B2/en not_active Ceased
  • 1980-08-06 WO PCT/EP1980/000073 patent/WO1981000501A1/de not_active Application Discontinuation
  • 1980-08-07 GB GB8025838A patent/GB2055541B/en not_active Expired
  • 1980-08-11 IT IT24115/80A patent/IT1132549B/it active
  • 1980-08-12 BE BE0/201713A patent/BE884727A/fr not_active IP Right Cessation
  • 1980-08-13 CA CA358,177A patent/CA1133261A/en not_active Expired
  • 1980-08-13 ES ES494239A patent/ES494239A0/es active Granted
  • 1980-09-15 DD DD22391280A patent/DD153042A5/de unknown
• 1981
  • 1981-04-14 DK DK169781A patent/DK169781A/da active IP Right Grant

Patent Citations (7)

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